Switch.



G, W. HART.

SWTGH.

APPLICATION FILL, 00115, 1908.

Patented June 22, 39%.

2 SHEETS-SHEET 3..

www

G. W'. HART.

SWITCH.

APPLIOATION FILED oGT.15,-1908.

a-tenjted Jupe 22, 1909.

2 SHEETS-SHEET Z.

UNTEB STATES filiali GERALD W. HART, GF HARTFORD, CONNECTICUT, ASSIGNORT0 THE HART MANUFAGIURJh ING COMPANY, QF HARTFORD, CONNECTICUT, ACORPORATON OFNEW JERSEY.

Specification oi 'Letters Patent.

atented irme 22, 1909.

Applicatie led @atelier l, 19%. Serial No. @$7,326.

To all. whom it may concern:

Be it known that l, GERALD l/Y. Erler, citizen ofthe United States,residing at Hart# ford, county of Hartford, State ol Connecti-- cut,have invented certain` new and' useful lrnproyenients irll Switches, ciwhich the following is a full, clear, and exact description. y Myinverrtionrelates to double-controlled switches, by Whichol rnean.switches which are subject to both manual and electro-inagd neticcontrol.

@ne of its objects to produce a push but t0n switch which can beoperated manually at the switch and can also` be loperatedelectroinagnetica lly from a distance.

Another objectof roy invention is to nialie a ,switchmechanisrncontrolled electro-inagnetijcally by the boltin a door7 sothat when thej ,door is locked the circuit containing the .translatingdevices'will be automatically interrupted. 'The `particular applicationof this last named featureis in connection with doors of hotel rooms,the arrangement being l such that When' the hoteldoor is locked 'fromthe outside all lights in the room Within shall be automaticallyextinguished.

Another .object is to' mak-e -a door controlled ush button switch. y

The following is .a description of apparatus embodying my invention,reference being had to the accompanying drawings,-in Which- Figur'e lrepresents a side elevation oi the switch mechanism. Fig'. 2 representsan end elevation of the saine, the endshown being the left hand end oi'Fig. l. Fig. 3 isv a hoi-if Zontl section of the electro-magnetic deviceon the line X-X l? 1. Fig. e. is a lan view of the electro-magneticdevice of Fig. i

etached from the switch proper. Fig. 5 is a view oi the switch roper asshown in Fig.' l, looking upward. A ige. 6 to i3, inclusive, are detailviews o ivarious members ci 4the switch. Fig. 6 is a side/and front viewof the stop plate. yFig. 7; is a side and iront vieur of' the support.llfig. S` is ajsile and iront'view ol' a Acletent. Fig. @is a side andiront view ci the actuating member'. Fig. i0 is a side vievr of :thespring. Fig. il is a side and front view of .fi-.spring plate.l Fig. i2is a side view oit thestritlch late. Fig. i3 a side viewv ci the, switchs aft. lig. lll is a diagram of cir cuits.

Referring more partieulady to the drazvf ings, A is an'insulatingporcelain base conM taining switcho1 :mechanism proper. .rus

i l l l l l mechanism consists ci. elements coni-- posing a snap -Witchmanually actuated by the push buttons lim-"1. The switch consiste oi aswitch-plate C adapted to electric#v ally connect and disconnect springcontacts l--B recruited-y on the base A.. Through a carrier C', theswitch-plate is insulated from and secured to a shaft E jcurnaled in asupport l?, which support is secured to the base A. Guided by thesupport is a det-ent G, which surrounds the vi'irojeetion il" on thesupport E. and has a projection G which passes through an opening F2 insup Jorta'nd cornes into the path oi1 projections on the stop plate H cithe switch. rihe boss g engages the sides oi the opening F2. ribis stoAplate is rigidly mounted upon the shaft A between the switch-platecarrier and the su p-v port F. An actuating member S is\ also mountedupon. the support l" adjacent to the detent G. This actuating'nlernbercarries a projection l which 'fits in a groove or recess G2 in thedetent, with the result that as actuating member is moved'in-onedirection or the other through a portion oi a circle, the detent G iscaused to move to or from the axis of the shaft l). This movement causesthe projection G to move away 'from or toward the projections H on thestopplate Trl, as hereinafter described. The movement of the detent isalways rectilineal and the engagenient between it and the actuatingnieniber is a sliding engagement.

Upon the hub ci the actuating member, a c'oil spring J is placed, itstwo Jfree ends 1seing on opposite sideso'f4 the projection carried bythe actuating nieniber. ligidly secured to the end ci the shai't is aspringplate 'ii having a projection l. which aso passes between the two'iree ends ci the spring. lt will-be noted that the shaft, tof gether7with the switch-plate, sto A' plate and springplate l, are allrijfidysecured together, and that the detent Gand ,ectiiatf ingmeinber lare free to nioverela'g" the shaft. To the actuating niemthe push.buttons Beh are loosely pivetef.. whenv the actuating inemfherv is movedhy pressure upon one or the other pi push, buttons, the det-ent is iirstforced toward the projections H" and simultaneously the projection lsengaging the one end'oif coil spring J, -theotier end being iestrnned bythe projection up "n the spring-plate, 'Winds .up the coil-spring J,putting the are' detached from the plate under tension which will causethe springplate and parts connected therewith to move as soon asthey'are released. Upon a further movement oi the actuating member thedetent G is forced toward the shalt E until the projection G is removedfrom the path 0i' the projections H on the stop plate. This permits theshaft E, together with the switchplate, to revolve under the actionl oi'the Spring J, with the result that-the translating circuit is eitheropened or closed,` according to the push button which has been actuated.The action is the same in both cases, whichlever button may be moved.

The electro-magnetic4 means for operating the switch consists of a coilL having a magnetic shell M. This coil has a two-part iron core, thepart N being movable and the part Nf being stationary, thewhole`constituting" an iron-clad solenoid A spring N2 .restoring thepart N to normal position when the solenoid is denergized is preferablyused. 'Attached to the movable portion N is a projection O whichsurrounds a shaft P to which acrank pin Q mounted upon the disk Q isrigidly connected. The art 0 where it surrounds'the shaft l? is sibttedso -as to be free to move and yet be guided by the shaft ll?. The shaftP has secured to it a plate R, as shown in F ig. 4, and to this plate Ra connecting plate S is secured by adjustment screws s -s. Theconnecting plate S is rovided with two hollow projections r,iP-#T which'are adapted to iit over projections U-U on the actuating member lI. Theshaft l? is, journaled in uprights V-V which are secured by screws to aplate W, carried by thebase A. When the u rights V-V the electro'-magnetic device can e easily separated from the switch proper by reasonof the detachable connections T U-U.

Referring to the diagram shown in Fig. 14,1 re resents a switch-platewhich can be manna y actuated so as to make and break the circuitleading tothe translating devices.

Nrepresents a movable snlenoid coreoperae,

tively connected to the switch member 1.

LVL represents the solenoid coil which is adapt-l ed .to be connected toand disconnected from one terminal of said coil being' connected to theswitch contact on the translating side vof the switch. 3 and 4 arespring terminals of a circuit controller, the

.terminal 3 being connected directly toA the coil L, while lthe terminal4-is-connected to the vmain. The push button 6, having a bridgefpl'ate7, is adapted to electrically connect and disconnect the springterminals 3 and 4. The push button is normally forced outward by thespring 8. 9 is a doorhoit which is actuated by a key inserted from theoutside of thevroom only. Virhen it'fis thrown so as to lock the door,as shown, it'engages the push button 6 and forces it incircuit.

ward against the action of the spring 8 until the bridge piece 7electrically connects the spring terminals 3 and 4.

lt will be seen from the foregoing that when the door is locked and theswitch l closed, the bolt 9 causes the push hutten G to complete a shuntcircuit through the coil L, thus energizing the solenoid and causing thecore N to be drawn down, thereby moving the switch member 7 so as toopen the When the door is unlocked, the coil L is denergized and thecircuit can be made and broken by the manual movement oi the switchmember 1, as desired, the action being entirely unaected by the presenceof the electro-mechanical device. One terminal of the coil L isconnected upon the translating device side of the switch proper, so thatthe circuit is never broken at the push button 6 when current is flowingthrough it, and thereby all sparking on the break between thespringcontacts 3 and 4 and the bridge piece 7 is entirely avoided.

. My invention not only provides means for automatically extinguishingthe lights in a room whenever the door is locked from the outsidewithout interfering with the use of such lights when the door isunlocked or when it is locked on the inside by another bolt, but alsoprovides means wherebysuch a controlling mechanism a plied to any hoteldoor in connection wit locks already in lace without in any wayrequiring those loc s to be changed or altered.

'- My invention can be embodied in various other arrangements without dearting from its spirit or the principles invo ved therein.

'1. The combination oi a main circuit containing translating devices, anelectric switch controlling the same and having a switch arm, anactuating member and a spring connecting said switch arm and saidmember, electro-magnetic means operatively' connected to said actuatingmember and adapted to move said actuating member positively to placesaid spring under tension and operate said switch, a local energizingcircuit for the door jamb, in proximity to said bolt and said localcircult being connected to the main-circuit i'n parallell to saidtranslatingdevices on the, translating device side oi s aid switch.

2. The combination oi a push button switch having a quick actingmechanism, an*4 oscillating actuating member, and push-buttons formoving said actuating member 1n both directions, with electro-magneticmeans ior moving said actuating memberin one direction, a circuit 'forsaid electro-magnetic means, and a controller in said circuit, saidcircuit being connected in shunt across the mains controlled by saidswitch on the translating device side oi' said switch, and a door switchhaving a quick acting mechanism, an 15 bolt actuating said controller.oscillating actuating member, and push but- 3. The combination oi' apush button tons for moving said actuating member in switch having aquick acting mechanism, an both directions, with electro-magnetic means5 oscillating actuating member and push butfor moving said actuatingmember in one tons for moving said actuating member in direction, acircuit for said electro-magnetic 2o both directions, withelectro-magnetic means means, and a controller in said circuit, and formoving said actuating member in one means for adjusting the operativerelations direction, a circuit for said electro-magnetic oi' said switchand said electro magnetic lo means, and a controller in said circuit,said means.

circuit being connected in shunt across the GERALD W. HART. mainscontrolled by said switch on the trans- Vitnesses: lating device side ofsaid Switch. EDWARD TAYLOR,

4. rlhe combination of a push button J. T. CLARKE.

